/*
 *  Copyright 2007 Blandware (http://www.blandware.com)
 *
 *  Licensed under the Apache License, Version 2.0 (the "License");
 *  you may not use this file except in compliance with the License.
 *  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 */
package com.blandware.atleap.antext.core;

import com.blandware.atleap.common.Constants;
import com.blandware.atleap.service.core.UpgradeManager;

/**
 * <p>Ant task that upgrades DB from previous versions to allow current version
 * to be run with it.</p>
 * <p><a href="UpgradeDbTask.java.html"><i>View source</i></a></p>
 *
 * @author Roman Puchkovskiy <a href="mailto:roman.puchkovskiy@blandware.com">
 *         &lt;roman.puchkovskiy@blandware.com&gt;</a>
 * @version $Revision: 1.1 $ $Date: 2008/01/06 12:44:14 $
 */
public class UpgradeDbTask extends AbstractDbTask {

    /**
     * Version from which to upgrade
     */
    protected String fromVersion = null;
    /**
     * Upgrade manager
     */
    protected UpgradeManager upgradeManager;

    /**
     * @see com.blandware.atleap.antext.core.AbstractDbTask#doExecute()
     */
    protected void doExecute() throws Exception {
        if (fromVersion == null) {
            throw new Exception("Please specify version from which to upgrade using fromVersion attribute");
        }
        upgradeManager = (UpgradeManager) applicationContext.getBean(Constants.UPGRADE_MANAGER_BEAN);
        log("Trying to upgrade...");
        upgradeManager.upgradeDatabase(fromVersion);
        log("Upgrade complete");
    }

    /**
     * Sets value of 'fromVersion' task attribute (i.e. version from which to
     * update).
     *
     * @param fromVersion   version
     */
    public void setFromVersion(String fromVersion) {
        this.fromVersion = fromVersion;
    }
}
